42471030 has 32 divisors (see below), whose sum is σ = 116492544. Its totient is φ = 9707616.

The previous prime is 42471029. The next prime is 42471047. The reversal of 42471030 is 3017424.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 42470988 and 42471006.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100912 + ... + 101331.

It is an arithmetic number, because the mean of its divisors is an integer number (3640392).

Almost surely, 2^42471030 is an apocalyptic number.

42471030 is an abundant number, since it is smaller than the sum of its proper divisors (74021514).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42471030 is a wasteful number, since it uses less digits than its factorization.

42471030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202260.

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 42471030 is about 6516.9801288634. The cubic root of 42471030 is about 348.8972913638.

Adding to 42471030 its reverse (3017424), we get a palindrome (45488454).

The spelling of 42471030 in words is "forty-two million, four hundred seventy-one thousand, thirty".